SOUTH-EASTERN ASIA AND THE EAST INDIES 425 the island of Madura and a harbour basin has re- cently been constructed. These three ports are re- spectively the main out- lets of Western, Central and Eastern Java. There are several other small ports, Tjilatjap on the south coast; Cheribon, Pekalongan and Pasuruan on the north coast. Amongst important in- land centres, there is the fine city of Buitenzorg with its famous botanical gardens ; Bandung, in the heart of the fertile high plains of West Java; Garut, a delightful hill station ; and Jokyakarta and Surakarta, two native towns with over 100,000 inhabitants in Central Java. Java is fortunate, from the Europeans' standpoint, in having a number of excellent hill stations. The nature of the foreign trade of Java is seen from the diagrams. Batavia, it should be noted, has a considerable entrepot trade, but in this respect is overshadowed by Singapore, only 36 hours* steaming away. SUMATRA * The large island of Sumatra consists of a mountainous volcanic i A magnificent great volume of 560 pages, sumptuously illustrated, is O. J. A, Collet's Terres et Peuples de Sumatra (Amsterdam, 1925)-